Description | Mechanical Eagle at its absolute best. The SRAM Eagle 90 Transmission Groupset delivers the strength, precision, and ride quality of Transmission technology in a fully mechanical setup built to thrive under load and far from home. Designed exclusively for UDH frames, Eagle 90 brings hangerless Full Mount architecture, ultra-durable construction, and unmatched rebuildability to riders who want dependable performance without batteries. At the core of the system is a forged aluminum DUB crankset paired with a 32T T-Type chainring and removable bash guards for added protection. Shifting under load is seamless thanks to the XS-1275 T-Type cassette and a premium double-click mechanical shifter that delivers crisp, confident shifts even when you are pushing hard. Setup is radically simplified with SRAM’s four-step Transmission process: Prepare. Hang. Tighten. Route. No limit screws, no B-tension, and no guesswork. Features | Mechanical Eagle Transmission groupset designed for UDH frames only Full Mount hangerless rear derailleur with unmatched rebuildability Forged aluminum DUB crankset with 32T T-Type chainring and bash guards XS-1275 T-Type cassette with 10–52T range and X-SYNC technology Premium double-click mechanical shifter with MMX compatibility Simple four-step Transmission setup with no limit screws or B-tension Includes GX Eagle Transmission Flattop chain Specs | Model Eagle 90 Transmission Groupset Brand SRAM Drivetrain Type Mechanical Eagle Transmission Speeds 12-speed Frame Compatibility UDH only Rear Derailleur Eagle 90 Full Mount Shifter Eagle 90 right shifter Crankset Eagle 90 forged aluminum DUB Crank Arm Lengths 165mm, 170mm, 175mm Chainring 32T T-Type Direct Mount Bash Guards Yes, two included Cassette XS-1275 T-Type 10–52T Chain GX Eagle Transmission Flattop, 126 links Included Includes GX Eagle Transmission and Flattop chain Not Included Bottom Bracket, Brakes, Rotors Intended Use Trail, Enduro, All-mountain
